<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>css基础1</title>

  <style>
    div {
      font-size: 48px;
    }
  </style>

  <link rel="stylesheet" href="css/h1.css">

</head>

<body>
  css样式入门

  <div class="abc" style="color: #ff0000;">
    css样式效果
  </div>

</body>

</html>